Michael T. Fillenworth, PA
NPI 1023111275ActiveIndividual· Physician Assistant, Medical· Mt Pleasant, MI
Physician Assistant, Medical (PA) with Isabella Urgent Care PLLC, practicing in Mt Pleasant, Michigan. 92 Medicare patients in 2024, $7,059 paid; nearly all of their 486 Part D prescriptions were generic (95%). Lilly USA, LLC was the largest of 2 companies reporting payments in 2025, $37.92 in all, mostly food and beverage.
Overview
| NPI | 1023111275 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA |
| Sole proprietor | No |
| NPI issued | Sep 6, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant, Medical Primary | 363AM0700X | MF003215 | MI |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Physician Assistant (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 92 |
|---|---|
| Services billed | 329 across 13 procedure codes |
| Paid by Medicare | $7,059 |
Part D prescriptions in 2024
| Prescriptions (claims) | 486 · 487 30-day fills |
|---|---|
| Patients | 208 |
| Total drug cost | $3,639 |
| Generic share | 95% of claims |
Education and affiliations
| Graduation year | 1999 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Isabella Urgent Care PLLCMt Pleasant, MI · 4 clinicians
Industry payments (Open Payments)
- 2025$37.92 · 2 payments from 2 companies
- 2024$15.07 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Lilly USA, LLC | $21.13 | 1 |
| Astrazeneca Pharmaceuticals LP | $16.79 | 1 |
What the 2025 payments were for
- Food and Beverage$37.92 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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